Aircraft Electrical Systems/Wire knowledge

Question 1

What is the leading cause of wiring system failure?

Answer 1

Chafing

Question 2

What is the wiring integrity program process guide?

Answer 2

CGTO PG 85-00-210-A

Question 3

What shall splices not be used on?

Answer 3

On firing circuits or control circuits associated with ordinance or explosive systems

Question 4

What frequencies does TACAN operate on?

Answer 4

UHF (1000MHz) band with 126 two-way channels in the operational mode (X 0r Y) for 252 total

Question 5

What are the two means of thermal anti-ice on CG aircraft?

Answer 5

Bleed air and Resistive Heating Element

Question 6

What are three methods of deicing on CG aircraft?

Answer 6

Bleed air, resistive heating element and pneumatic

Question 7

What is the only AC that uses pneumatic deicing?

Answer 7

C130J

Question 8

What does a regulator do in a windshield anti-ice system?

Answer 8

Maintain temperature by controlling input voltage to power relay

Question 9

What does a thermistor/temp sensor do in a windshield anti-ice system?

Answer 9

Provides windshield temperature feedback resistance to regulator

Question 10

What does a pneumatic deicing system use?

Answer 10

Rubber deicers, called boots or shoes, attached to leading edge of the wing and stabilizers

Question 11

What is the minimum inside bend radius of a wire bundle?

Answer 11

10 times the diameter of the largest wire in the bundle

Question 12

What is the minimum inside bend radius of a flexible coax?

Answer 12

6 times diameter of cable

Question 13

What is the minimum inside bend radius of a jumper wire?

Answer 13

3 times diameter of wire

Question 14

What is the minimum inside bend radius of a semi-rigid coax?

Answer 14

10 times the diameter of the cable

Question 15

Do fiber optic or potted connectors require a drip loop?

Answer 15

No

Question 16

What radius should thermocouples leads be bent to?

Answer 16

Less than two-inch radius

Question 17

What is the slow action of opening or closing a circuit breaker actuator without engaging the locking mechanism?

Answer 17

Teasing

Question 18

Between what temperatures should solder be kept to keep it in a liquified state?

Answer 18

450-500 degrees F (232-260 degree C)

Question 19

Circuit breaker suffix for Sine High Vibration?

Answer 19

V

Question 20

Circuit breaker suffix for random vibrations

Answer 20

C-K

Question 21

Circuit breaker suffix P

Answer 21

Cover Plate Mounting Bracket with different mounting hardware

Question 22

Circuit Breaker Suffix L

Answer 22

Long push, long button

Question 23

Circuit Breaker Safety Percent?

Answer 23

20%

Question 24

What bonding class for shock hazard?

Answer 24

H

Question 25

Resistance requirements for shock hazard bonding class?

Answer 25

0.1 Ohm or less

Question 26

What bonding class is "C"

Answer 26

Current Path Return

Question 27

Bonding Class "C" resistance requirement?

Answer 27

Such that the voltage drop does not exceed the limits of operation

Question 28

What structures should not be used for a current path return?

Answer 28

Magnesium Alloy

Question 29

What bonding class is "R"

Answer 29

RF potentials, for EMI protection

Question 30

how much clearance for wires from a structure?

Answer 30

1/2 inch

Question 31

How much clearance from wire to fluid carrying lines?

Answer 31

2 inches

Question 32

What wires/connectors do not require a "drip loop"?

Answer 32

Potted or fiber-optic connectors

Question 33

What is used to block electromagnetic interference?

Answer 33

Filter Cable or wire

Question 34

Rear release connectors are required to have how many blue color bands that are readily visible when connected?

Answer 34

One or more blue color bands

Question 35

What fluid has been proven to be a major contributor to corrosion failure of connectors?

Answer 35

Deicing

Question 36

Under ultraviolet light, traces of flux appear as what color?

Answer 36

Fluorescent yellow to light brown residue

Question 37

What frequency is HF?

Answer 37

3 MHz-30MHz

Question 38

What’s the frequency range of VHF?

Answer 38

30MHz - 300MHz

Question 39

What is the frequency range of UHF?

Answer 39

300MHz - 3,000MHz